package cn.tedu.hongpei.config;

import cn.tedu.hongpei.response.ResultVo;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 * @author coinyang
 * @date 2023/3/21 14:40
 */
@RestControllerAdvice(basePackages = {"cn.tedu.hongpei.controller"})
@Slf4j
public class ControllerExceptionHandler implements ResponseBodyAdvice<Object> {
    @Override
    public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {

        return  !returnType.getParameterType().isAssignableFrom(ResultVo.class);
    }

    @Override
    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class<? extends HttpMessageConverter<?>> selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
       if(returnType.getGenericParameterType().equals(String.class)){
           ObjectMapper objectMapper = new ObjectMapper();
           try{
               return objectMapper.writeValueAsString(ResultVo.success(body));
           }catch (JsonProcessingException e){

           }
       }

        return ResultVo.success(body);
    }
}
